With Certified Calibrations, you can rest assured that all of our products are made to have traceability to stringent international standards and calibration regulations established by top industry authorities. In order to satisfy our customers’ requirements, we custom design and manufacture prover tanks & test measures to their specific demands, offering unparalleled quality and efficiency.Certified Calibrations has been specializing in metering systems and waterdraw systems for over 20 years. We have well experienced service engineers with over ten years of experience in our craft and we have been in the market building volumetric standards and prover tanks for over 50 years.Certified Calibrations, Inc. is a full-service liquid measurement company dedicated to consistently providing high customer satisfaction by rendering excellent service, quality services & products. ​   We will maintain a friendly creative work environment that respects diversity, ideas, and hard work.